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当下以太坊上主流的钱包类型有 EOA 和 SCW 两种，但两者分别面临着
: \' S$ s1 f; q) ~* m+ m! J3 x( B; h- D( R2 f9 L
执行效率低下和无法自主发起交易的问题。以太坊开发者几经探索，现阶段找 W$ X: I7 `! v' P* P! J" S* g
1 D- m9 p; B2 M3 \- {' ]4 y到的最优方案是通过 ERC4337 实现的账户抽象。
5 ~5 \- r1 c; \/ b2 E; M
! m q2 l) m8 j, n( n6 K0 D4 N5 w& R ERC4337 钱包通过 Bundler 实现了私钥与账户主体的分离，交易的批量处理2 E5 I( j. A& n; g
0 h7 B" i- u, `; c& O5 M: `. |并可以主动发起交易。同时，通过智能合约钱包的内置代码，可以根据外界信息
; Y4 l7 n% W% l8 [# C. H$ i4 ]1 F
9 P/ h9 ^' z! ^& u( d自动化处理交易。
; ~# f+ j" L) M! M: g7 G3 Y' b
" Y7 t& n) F% A) M 但这一提议仍然面临着协议层账户抽象和原生账户抽象钱包等其他方案的挑战，
6 y+ _' J+ u$ b+ l
5 l8 b5 {1 P$ J! p5 R0 X/ k同时 ERC4337 入口合约今年 3 月才上线以太坊主网，许多问题有待挖掘，最终方案) v: v0 C5 a1 r& @" v7 P: W0 W. K; P8 X# h
: B' N+ ~( C9 d9 d7 F! N存在较大不确定性。最后，由于 Entry Point 合约的单点性，ERC4337 在升级上受到
) n6 Z) a1 ?& A( ^) {
8 i; W, z# ^. j4 n6 n了很大限制。/ N+ [" C+ P% F: ~7 w, n
4 l, k- W9 Y7 g* D3 y2 L( y0 u! t9 U 为了解决这些问题，ERC4337 的开发者也通过补充 EIP 提案，在不改动入口合约
2 S4 ~9 p: Y- r6 q
% Z$ G1 ?- H2 k的情况下进行优化。对于 EOA 时代 Dapp 与 ERC4337 不兼容的情况，ERC4337 支持者4 s4 f6 O) a N# O
- G! d3 Q( e k* b
自建了大量 ERC4337 的钱包项目和专注于 ERC4337 钱包交互的 Dapp 项目，这些项目
- ]* ]1 p4 o6 p
9 U: v1 y+ V% u! o+ l- `提供了原来 Defi，Socialfi 中 EOA 账户可以享受的各类交互并在可操作性上做出了优化。
I3 D) q! f; L- \3 t
$ D" Y. p2 C1 B! b2 o! @- j0 E; w1 S' x6 ^, I+ m" z
总的来说，ERC4337 仍为现阶段实现账户抽象的最优解。通过 Paymaster 的代偿
8 E M. E6 d3 j! J2 l+ L$ H; [; V3 @( k: N4 }% g
合约，降低了用户参与 Defi 的门槛，项目方可以提供 0gas 或者低 gas 交易来吸引更多
" t* I, d) V% L7 q# H3 _* n
. \- r/ f7 H7 J# _* [! w用户的参与。通过对交易的打包与批量化处理，大大优化了用户在 Socialfi 和 gamefi 中
8 C1 d2 S- I& b/ s9 j9 l; u- V4 ]% k/ R% V5 W4 z3 y$ B
的参与体验，为 Socialfi 和 gamefi 的参与者提供了更为多样的交互选项。
% P* Y* G3 ]* u" h) n s* @, n/ N* T) V9 d
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